Home / 305,551.50-458,339.67-145,545.18

Finding the Fourth Proportional to 305,551.50, 458,339.67 and 145,545.18

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Solution

The fourth proportional to 305,551.50, 458,339.67 and 145,545.18 is: 218,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,551.50 : 458,339.67 = 145,545.18 : x
  2. Step 2: Convert to fraction form
    305,551.50/458,339.67 = 145,545.18/x
  3. Step 3: Cross multiply
    305,551.50x = 458,339.67 × 145,545.18
  4. Step 4: Simplify right side
    305,551.50x = 66,709,129,771.29
  5. Step 5: Solve for x
    x = 66,709,129,771.29/305,551.50
  6. Step 6: Final answer
    x = 218,323.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.